А. Ю. Загарин Analysis of blood biochemical status is a universal way of monitoring metabolism and general physiological state of animals, which determines the relevance of identifying the nature of relationships between blood biochemical parameters and various economically useful and biological traits. The aim of the work is to determine the correlations between blood biochemical parameters and morphological features of broiler chickens (on the example of cross Ross 308). Broiler chickens in the number of 258 birds were reared in a one-room poultry house for 35 days under observance of technological parameters and feeding system recommended for the given cross. At the end of rearing, 18 chickens were slaughtered with subsequent blood sampling and anatomical cutting of carcasses. The obtained data were mathematically processed; Pearson correlation coefficients were calculated. The results of correlation analysis showed a direct relationship between the activity of aminotransferases and indicators characterizing muscle development and meat productivity (r = +0.56–0.57), the activity of lactate dehydrogenase and indicators, characterizing muscle development and meat productivity (r = +0.50–0.73), triglyceride concentration and liver weight (r = +0.51), calculated indicators of protein metabolism and indicators of meat productivity (r = +0.47–0.64). A negative relationship was found between glucose level and the sum of inedible parts of the carcass (r = –0.52), as well as between some absolute indices of protein metabolism and indicators of meat productivity (r = –0.54–0.61). The results of the research are important for expansion of the database of ranges of physiological norms of biochemical blood parameters of broiler chickens and can be used in interpretation of blood analysis results as monitoring indicators of metabolism, state and work of organs and level of meat productivity of poultry. The results of the research are important for expanding the database of ranges of physiological norms of biochemical blood indices of broiler chickens and can be used in interpreting the results of hematological analyses as monitoring indicators of metabolism, state and work of organs and level of meat productivity of poultry.
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